1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e3c3fcc9fda2a99d1b0742acd81542052f753858fb3fe5fb5170944df029e6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f905f0cb-57e7-494c-96f0-7636013a4c1e.json and https://artists.proofprofile.net/proofs/artist/f905f0cb-57e7-494c-96f0-7636013a4c1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bfa77bd6644de720b01aeff4675fc669d87aa589f2a807871320273dc2bd8d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2124046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397ccba45fdd70c2e858d6836b3c3383f8be2aaade29f417977dbde83d571d94. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2124047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6256abd793dce1e5d9fb1edc601bfbe25971b4e2683d0a017a7ba8c27b282a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2241248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc338b886722df2b07763b499f599c93b9119f6365f8c966eb39b9f12947df353. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2308307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091aa3744277392572aa34c707eb72b12cf4b090413baded0f27d7948ad3f3f8. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2308309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc0ec07796c772d587e553e1bf7c2bc08e6a4a2680b926c4f01663a03a06072. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:22:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHP2382294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac5fd4f1e3f9abec083f96d40d2482c0c0863e3454b409767bcf690ec9e5823. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K2359427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32f4eac30cd49a35750a92ce0468c60137b4fe1b18d87f56c3cec1e78fba4a0. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRD9M2401330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb184e61ace898068f8ab32e18a8bc23d8c69bfe0d073918a36c4937a936f9fa4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRD9M2401860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8eef7bb2b3f1983a0c0579d85b3405cd47a3e405ecb596f129ef425d48b339. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRD9M2402590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82294336a97d9d2a87e826041daa8020c842b1fdc781a959c6a12b6412ac78c. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRD9M2403320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16503816c8a60893694a11d46a82dfe062ab268200b21f1f8b3a3964329e5831. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLE072419701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732ba4f79e14fd0b8256024a0da2e2cb7fd2eaae2c94d428ea05b01615794fbf. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12445227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca27469126b9b818e96d26403d788f3f2aa875b9d35dd925b082237314ba02e7. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12445229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd94b3ab7d513d27e68333bd48fcf6d7dd71b15a4cb42435ab04d3edbeeb35f. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12445226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358717e90b72dead2f2b39acc4e2d953c4267c8d6d03d9af9f8a0caca75386. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2546589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7b3fec0e90c59e242799ecca9dd295cb92dfef70a441ff047421ef6363f2b1. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12445228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358717e90b72dead2f2b39acc4e2d953c4267c8d6d03d9af9f8a0caca75386. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2546589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08051a6d68519044c9654e7cd7665407a196bbad210e731121c0a73143157308. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2589896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358717e90b72dead2f2b39acc4e2d953c4267c8d6d03d9af9f8a0caca75386. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2546589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f1d13634fb54ff1b17840a794c1a0162d2b42914f694dd77ec19698ffd17af. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2587838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08051a6d68519044c9654e7cd7665407a196bbad210e731121c0a73143157308. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:58:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2589896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358717e90b72dead2f2b39acc4e2d953c4267c8d6d03d9af9f8a0caca75386. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2546589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee209565fa719821f8b14d6ce146a5644424d5a35f4a606207ff923757da78ef. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22574722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08051a6d68519044c9654e7cd7665407a196bbad210e731121c0a73143157308. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2589896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358717e90b72dead2f2b39acc4e2d953c4267c8d6d03d9af9f8a0caca75386. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2546589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3026f0de5391c204ddb142164905d7f100297a199a3da9528c71c33a5f16499c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282505991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee209565fa719821f8b14d6ce146a5644424d5a35f4a606207ff923757da78ef. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22574722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f1d13634fb54ff1b17840a794c1a0162d2b42914f694dd77ec19698ffd17af. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2587838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08051a6d68519044c9654e7cd7665407a196bbad210e731121c0a73143157308. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2589896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cacc573cfc7fbaeb65fe64d3d4fed17a65d91d3c4551af5921ad38b3a922902. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92539241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3026f0de5391c204ddb142164905d7f100297a199a3da9528c71c33a5f16499c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282505991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee209565fa719821f8b14d6ce146a5644424d5a35f4a606207ff923757da78ef. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22574722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f1d13634fb54ff1b17840a794c1a0162d2b42914f694dd77ec19698ffd17af. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2587838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08051a6d68519044c9654e7cd7665407a196bbad210e731121c0a73143157308. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2589896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358717e90b72dead2f2b39acc4e2d953c4267c8d6d03d9af9f8a0caca75386. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2546589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49d787474b012992632fae17b19510daa6c1e15875b7bd70d5592f95fc72bec. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62544759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cacc573cfc7fbaeb65fe64d3d4fed17a65d91d3c4551af5921ad38b3a922902. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92539241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3026f0de5391c204ddb142164905d7f100297a199a3da9528c71c33a5f16499c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282505991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee209565fa719821f8b14d6ce146a5644424d5a35f4a606207ff923757da78ef. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22574722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f1d13634fb54ff1b17840a794c1a0162d2b42914f694dd77ec19698ffd17af. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:22:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2587838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358717e90b72dead2f2b39acc4e2d953c4267c8d6d03d9af9f8a0caca75386. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2546589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0f4702d9e629077645a92f73be73da4c022f4085c67d98ef2f2f1601787bfc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72522932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cacc573cfc7fbaeb65fe64d3d4fed17a65d91d3c4551af5921ad38b3a922902. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92539241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3026f0de5391c204ddb142164905d7f100297a199a3da9528c71c33a5f16499c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282505991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee209565fa719821f8b14d6ce146a5644424d5a35f4a606207ff923757da78ef. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22574722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f1d13634fb54ff1b17840a794c1a0162d2b42914f694dd77ec19698ffd17af. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:55:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2587838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08051a6d68519044c9654e7cd7665407a196bbad210e731121c0a73143157308. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:37:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2589896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62358717e90b72dead2f2b39acc4e2d953c4267c8d6d03d9af9f8a0caca75386. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2546589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cbbd8628a047de393284947405af828e401941e98122180219dfc8ecee0ac1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2211194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb881ac110031528459b1617eec6344545b29fc5d4f6e70a5bf8f1d33fd0408e7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG2314469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bda9b68bd5714335ba8a68e4171bbc31de8670ca810a86661e4bc8d9402087. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2330614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3c05d633d1d45fc9d2f5ca45558f1749d0cba62f142cffd09abc61fbf08884. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESUM72302442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc43ce79f227e4f23e1d9188e839430244ae239b7a8786e8b87935125a4b7817. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG932403755.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28263f9c6623c4cc5c0a70cc4b066defc2607d310cbbe3a15864756a747e8b5f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2216392.